Methods of neural conversion of human embryonic stem cells
First Claim
1. A method for inducing differentiation in stem cells, comprising,a) providing:
- i) a cell culture comprising human pluripotent stem cells,ii) a first inhibitor of Small Mothers Against Decapentaplegic (SMAD) protein signaling, wherein said first inhibitor is selected from the group consisting of Noggin, a disulfide-linked homodimer of Noggin, Dorsomorphin, LDN-193189, and mixtures thereof, andiii) a second inhibitor of Small Mothers Against Decapentaplegic (SMAD) protein signaling, wherein said second inhibitor is 4-[4-(1,3-benzodioxol-5-yl)-5-(2-pyridinyl)-1H-imidazol-2-yl] benzamide (SB431542), andb) plating said stem cells in a culture medium,c) contacting said plated pluripotent stem cells within 24-36 hours of said plating with said first inhibitor of Small Mothers Against Decapentaplegic (SMAD) protein signaling and said second inhibitor of Small Mothers Against Decapentaplegic (SMAD) protein signaling, andd) inducing differentiation of said contacted pluripotent stem cells into a population of cultured neuroectodermal precursor cells.
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Abstract
The present invention relates generally to the field of cell biology of stem cells, more specifically the directed differentiation of pluripotent or multipotent stem cells, including human embryonic stem cells (hESC), somatic stem cells, and induced human pluripotent stem cells (hiPSC) using novel culture conditions. Specifically, methods are provided for obtaining neural tissue, floor plate cells, and placode including induction of neural plate development in hESCs for obtaining midbrain dopamine (DA) neurons, motorneurons, and sensory neurons. Further, neural plate tissue obtained using methods of the present inventions are contemplated for use in co-cultures with other tissues as inducers for shifting differentiation pathways, i.e. patterning.
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Citations
8 Claims
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1. A method for inducing differentiation in stem cells, comprising,
a) providing: -
i) a cell culture comprising human pluripotent stem cells, ii) a first inhibitor of Small Mothers Against Decapentaplegic (SMAD) protein signaling, wherein said first inhibitor is selected from the group consisting of Noggin, a disulfide-linked homodimer of Noggin, Dorsomorphin, LDN-193189, and mixtures thereof, and iii) a second inhibitor of Small Mothers Against Decapentaplegic (SMAD) protein signaling, wherein said second inhibitor is 4-[4-(1,3-benzodioxol-5-yl)-5-(2-pyridinyl)-1H-imidazol-2-yl] benzamide (SB431542), and b) plating said stem cells in a culture medium, c) contacting said plated pluripotent stem cells within 24-36 hours of said plating with said first inhibitor of Small Mothers Against Decapentaplegic (SMAD) protein signaling and said second inhibitor of Small Mothers Against Decapentaplegic (SMAD) protein signaling, and d) inducing differentiation of said contacted pluripotent stem cells into a population of cultured neuroectodermal precursor cells. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification